Marantz 2215B (1977-1980)
A compact AM/FM stereo receiver delivering a minimum of 15 watts per channel, built with modular printed circuit boards for serviceability.
Overview
The Marantz Model 2215B is a stereophonic receiver from the heart of the company's classic era. Designed in the USA and manufactured in Japan, it embodies the integration of American sonic philosophy with Japanese precision engineering. As a member of the "B" line, it offered core Marantz performance in a more accessible package. Its chassis is constructed from a series of specialized printed circuit (P.W.) boards, each dedicated to a key function: the FM/AM Tuner (P100), Phono Amplifier (P400), Power Amplifier (P700), Power Supply (P800), Tone Amplifier (PE01), and control assemblies for muting, monitoring, and dial lamps. This modular design, documented in a detailed service manual for authorized technicians, underscores its build quality and repairability. With its 17-3/8 inch width, it fits a bookshelf profile, and its performance is defined by specific, measured specifications for both its amplifier and tuner sections.
Specifications
| Manufacturer | Marantz |
| Product type | AM/FM stereo receiver |
| Production years | 1973-1977 |
| Rated Power Output (Minimum) | 15 watts per channel, both channels driven into 8 ohms (40 Hz to 20 kHz) |
| Total Harmonic Distortion (at rated power) | 0.8% |
| I.M. Distortion (IHF method) | 0.8% |
| Damping Factor | 40 |
| Load Impedance | 8 ohms |
| FM Usable Sensitivity (IHF 50 dB Quieting, mono) | 4.0 µV (17.3 dBf) |
| FM Usable Sensitivity (stereo) | 50 µV (39.2 dBf) |
| FM Distortion (Mono, at 65 dBf) | 0.4% |
| FM Frequency Response | 30 Hz to 15 kHz (+1.5 dB mono, +2.0 dB stereo) |
| FM Capture Ratio | 4.0 dB at 45 dBf; 3.0 dB at 65 dBf |
| FM Stereo Separation | 35 dB at 100 Hz; 38 dB at 1000 Hz; 30 dB at 10 kHz |
| AM IHF Usable Sensitivity | 25 µV |
| Power Requirements | 120 V AC, 50/60 Hz |
| Power Consumption (at rated output) | 95 Watts |
| Idling Power (volume at zero) | 25 Watts |
| Dimensions (W x H x D) | 17-3/8 x 5-3/8 x 11-1/2 inches |
| Weight (Unit alone) | 20.90 lbs |
| Weight (Packed for shipment) | 26.84 lbs |
Key Features
Modular Circuit Design
The receiver's functionality is divided into distinct, serviceable units mounted on individual printed circuit boards. These include the Tuner (P100), Phono Amplifier (P400), Power Amplifier (P700), Power Supply (P800), Tone Amplifier (PE01), and assemblies for Loudness/Monitor (PT01), Muting/High Filter (PH01), and Dial Lamps (PZ01). This organization facilitates targeted troubleshooting and repair.
FM Tuner Performance
The tuner section offers detailed performance metrics. It achieves 50 dB quieting with just 4.0 µV input in mono. Stereo separation is rated at 38 dB at 1 kHz, and capture ratio is a respectable 3.0 dB at a strong 65 dBf signal level. The design employs a Phase Locked Loop multiplex decoder and ceramic IF filters for stable reception.
Amplifier Section
The amplifier is rated to deliver a minimum of 15 watts per channel into 8 ohms with both channels driven across a 40 Hz to 20 kHz bandwidth, with total harmonic distortion at 0.8%. It features a damping factor of 40. The design requires specific test equipment for proper servicing, including an 8-ohm, 100-watt load resistor and a variable autotransformer for power adjustment during alignment.
Construction and Packaging
The receiver features a metal chassis, a plastic front panel with distinctive Marantz styling, and was available with an optional wooden case. It was securely packed for shipment in a two-part cardboard case (inner and outer) with upper and lower foam cushions, a polyethylene bag, and a silica gel desiccant packet to control moisture.
Inputs and Controls
The front panel includes a slide-type volume control knob, push-button switches, and a dedicated power switch knob. The rear panel provides connections for phono, tape, and auxiliary sources, along with 300-ohm and 75-ohm antenna terminals. It also includes an FM Quadradial (discriminator) output for compatibility with 4-channel FM decoders.
Source Documents
Original source documents linked below — curated references to publicly-available technical documentation, not rehosted.
- Service Manual: Marantz 2215B Service Manual.pdf — 2 MB — library.mikesservers.com
Market Value
┌──────────────────────────────────────────────────────────────────────────┐ │ MARANTZ 2215B Apr 2026 │ ├──────────────────────────────────────────────────────────────────────────┤ │ High $806 Latest $500 │ │ Median $469 Trend ▼ Down │ │ Low $299 Volume ~7/mo │ ├──────────────────────────────────────────────────────────────────────────┤ │ $900 ┤ │ │ │ . │ │ │ . .. │ │ $600 ┤ . │ │ │. .│ │ │ . . . . │ │ │ . . . . . . . .│ │ $200 ┤ . │ │ ├─────────────────────────────────────────────────────────────────│ │ vol │▄ ▄ ▄ ▄▄ ▄ █ ▄ ▄ ▄ ▄▄█ ▄ ▄ ▄ █│ │ └─────────────────────────────────────────────────────────────────│ │ 2026-01 2026-03 2026-04│ └──────────────────────────────────────────────────────────────────────────┘
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